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NTN LM739749 is a single-row tapered roller bearing cone from the LM inch series. It features a straight bore and is designed for use with a matching cup in applications such as gearboxes, axle housings, and industrial machinery. This cone is unsealed and requires proper lubrication.
MODEL LM739749
$656.51 Each
Prices are subject to change
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Returnable:No
I.D.
7.75 in
O.D.
10.125 in
Width
1.5625 in
Technical Specifications
Type | Cone |
|---|---|
Bore Type | Round |
Material | Case Carburized Steel |
Static Load Rating | 163000 lbf725000 N725.00 kN |
Dynamic Load Rating | 67000 lbf297000 N297.00 kN |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Y2 (Axial Load Factor) | 1.34 |
e (Axial Load Factor) | 0.45 |
Dimensional Specifications
| |
B | 7.7500 in196.850 mm |
|---|---|
Wi | 1.5625 in39.688 mm |
R | 0.1400 in3.600 mm |
U | 8.39 in213.0 mm |
V | 8.11 in206.0 mm |
a (Effective Load Center) | 0.4500 in11.400 mm |
How do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.